Uncomplicated technology: easy to use thanks to keyless handling of the drill chuck Safe working: Effortless clamping of round shank or hex shank drill bits Saves time: easy and quick clamping without drill chuck key 2 sleeves: for safe drill change without spindle lock Compatible with a variety of drills, hammer drills and cordless hammer drills without spindle lock. Made in Germany, Weight: 0.6944561253 pounds, Manufacturer: Bosch